Black Diamond

Rocklock Magnetron Carabiner

$29.95 has a perfect 5-star average score on Trustpilot.


Easy to check the lock and unlock, this carabiner is truly a game-changer.

Like all of your other locking carabiners, the Rocklock Magnetron Carabiner locks shut to keep you safe and secure. Rocklock’s secret? Magnets. Using the power of magnets, locking is easier than ever before. Two magnetic arms in the gate and a steel insert in the carabiners keylock nose create a self-clearing and secure locking mechanism. Even with gloves, easily lock and unlock this carabiner. Black Diamonds classic Rocklock shape is ideal for belaying, making anchors and rappelling. Plus, the keylock nose prevents snagging on the climb.

Weight: 87 g (3.1 oz)

Closed Gate Strength: 24 kN (5,395 lbf)

Open Gate Strength: 7 kN (1,574 lbf)

Minor Axis Strength: 7 kN (1,574 lbf)

Gate Opening: 21 mm (0.83 in)

More info:

Innovative gate design uses two magnetic arms in the gate and a steel insert in the nose for a super-secure, interference-free closure

Keylock nose prevents snagging

Easy operation with either hand

Square hinge end holds belay loop securely in place

Slightly curved spine maximizes gate opening

Type H or HMS connector. For dynamic belaying using a Munter Hitch or belay device.

Shipping Information offers free ground shipping anywhere in the continental US for any order of $89 or more. orders under $89 ship within the continental US for a flat rate of $8.95.
​Shipment tracking typically takes 1 - 3 business days to update. You will receive an automated shipment notification email as soon as your tracking number becomes available. If you do not receive your shipment tracking email within 1 - 3 business days be sure to check your spam or junk mail folders. Standard shipping takes approximately 3 - 7 business days. During the Holidays the estimated shipping window is extended to 7 - 10 business days.

​Unfortunately we're unable to promise or guarantee delivery by a specific date and don't offer overnight or express shipping at this time. We also do not currently ship to Alaska, Hawaii, APO/FPO addresses, US territories, or international addresses. Please feel free to reach out to with any questions!


COVID-19 Shipping Delays: The COVID-19 pandemic has greatly impacted all of our lives. We understand that this is a difficult time and we want you to know that the family is working hard to provide you with exceptional customer service and awesome gear. Due to increased order volume, mail carrier delays and the additional CDC recommended safety measures we are taking to protect our teams, it may take longer than the usual 5 -7 business days for your order to be delivered. Many orders are shipping within the estimated 5 - 7 business day window, while others can take up to 7 - 21 business days to be delivered depending on warehouse location as each US State has a unique method of dealing with COVID-19. 
We are doing our best to process and deliver your order as soon as possible while keeping employees safe. Please keep an eye on your email for all order and tracking updates. We'll email you once your order ships. We appreciate your patience and understanding during these unique times. As always, if you have any questions, please reach out to and we'll do our best to assist you!

Returns ​​

Most orders can be returned anytime within 30 days of purchase for any reason, as long as the product is unwashed/unworn/unused, and is still in its original packaging with original tags, etc. Some exceptions apply and will be noted on the product detail page, such as items marked final sale or large items marked as oversized and do not qualify for free return shipping. For these oversized items, the customer is responsible for all return shipping fees. As long as the return meets the requirements of our 30 day return policy we will email a pre-paid return shipping label when a return request is submitted. Return Requests for oversized items will receive a return authorization number and a return address. ​To initiate a return request, please contact with your order number and customer name.

Manufacturing Defect/Warranty Claims ​

If you experience a manufacturing defect, or it's outside of’s 30 day return window, please contact the manufacturer directly. does not provide any direct warranty services, though your purchase may be covered by a brand or manufacturer warranty. If a warranty claim requires a Proof of Purchase from, please contact and we'll be happy to email a copy if needed.

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